CN1112880C - Method for making brush - Google Patents

Abstract

To provide a method for manufacturing a brush including a toothbrush excellent in a sweep of use and giving a comfortable feeling to teethridge. Differences of altitude are provided among the bundles and/or each hair of bundles. And tips of the hairs are rounded by a rounding process. Then the bundles are embeded into a head part firmly. According to this, the shape of the bundles and tips of the hairs can be changed by the need.

Description

Make the method for brush

The present invention relates to a kind of method of making brush, relate in particular to be suitable for making toothbrush, specially refer to comprise that the end rounding is handled or according to the position of line bunch and/or fine rule with the end of the fine rule of line bunch or the method for the manufacturing brush that the end grinds to form difform operation.

Usually, toothbrush comprises a handle, and handle has head, is formed with the hole of some embedding lines bunch on the head.And toothbrush comprises multiwire line bunch, and each line bunch is made up of the fine rule that combines, and fine rule is made by nylon, mutual-phenenyl two acid bromide two alcohol ester (PBT) or analog, the rounded or rectangle in cross section of line bunch.Then, with each line of forming therefrom bunch by in the embedded hole that is called hardware wiry and is embedded in each line bunch securely.Yet the toothbrush of Zhi Zaoing makes each root fine rule end that the edge all be arranged like this, therefore, when brushing teeth, can not provide a kind of comfort to gum.In order to address this problem, conventional method is: after online bunch the embedding or fitting operation, use grinder or similar device, the end rounding of each root fine rule.Regrettably, these class methods are the end of all fine rules of rounding fully, because, the cutting profile of some fine rule end, for example hackly cutting profile or similar shape have a negative impact to the rounding effect of end.

Consider above-mentioned situation, multiple technologies have been proposed, wherein, each line in the multiwire line of being drawn by spool or analog bunch bunch is integrally clamped, and makes the fine rule of each line bunch of these lines bunch align mutually, and fixing tightly, cause the end of fine rule to be positioned in the same plane, then, to these end roundings, as disclosing in No. 111305/1990, Japanese Patent Application Publication publication.Then, the fine rule of fastening or clamping is unclamped, and the fine rule of each line bunch that makes these lines bunch is along the axially-movable of toothbrush, owing to the profile of variation in height formation end, end.Then, the fine rule of each line bunch is fused together at place, adjacency end, and, be embedded into or be installed in the head of handle.These technology that proposed avoid using any wire, and therefore, each line bunch can form the shape of any needs.And, in the technology of these propositions, online bunch be installed in the head before, make the end of fine rule bear grinder or similarly the rounding of device handle, therefore, guarantee all fine rule end roundings.

The technology of not using any wire and embedding line bunch is disclosed in Japanese Patent Application Publication publication 241404/1985, No. 16725/1994,99002/1990 and No. 268208/1986 (these patent applications disclose the content that the method for melting combination with heat bunch is fixed on line head) and Japanese Patent Application Publication publication, in No. 503150/1990, No. 268208/1986, Japanese Patent Application Publication publication and the Japanese Patent Application Publication publication (these patent applications disclose the content that embeds line bunch with internal mold (in-mold) technology).

Yet the method that discloses in No. 111305/1990, the Japanese Patent Application Publication publication becomes the same with the end rounding of fine rule, so that toothbrush can not demonstrate satisfied scrubbing function and provide comfortable impression to gum when brushing teeth.Especially, demonstrate the function of scrubbing of increase, both scrubbed the border between tooth and the gum effectively, scrub interdental slit again effectively in order to ensure toothbrush, need be at an angle fine rule end sharpening.Yet, fine rule end sharpening becomes the same function that toothbrush is scrubbed dental surface that reduced again, in order to improve the function of scrubbing dental surface, the rounded ends of fine rule is worn into hemispherical, scrub the border between tooth and the gum and the function in interdental slit but reduced toothbrush.

The present invention is intended to overcome the shortcoming of aforesaid prior art.

In view of the above, the objective of the invention is to provide a kind of method of making brush, make brush with this method and can improve the border scrubbing and/or clear up between tooth and the gum and the function in interdental slit, and, can make gum that comfort is arranged when brushing teeth.

Method according to manufacturing toothbrush provided by the invention comprises following operation: many bunches of fine rules are introduced shaping mould, between the end of these lines bunch, a difference in height is arranged, rounding is carried out in the end of the fine rule of each line bunch handle, and, these lines bunch are embedded in the head of handle.

In a preferred embodiment of the invention, this method also comprises operation: after the end rounding was handled, making between the end of these lines bunch had an additional height poor, and wherein, this additional height difference is different from or greater than above-mentioned difference in height.

The present invention also provides a kind of method of making toothbrush, this method comprises operation: many bunches of fine rules are introduced shaping moulds, and making between the end of each bunch fine rule of these lines bunch has a difference in height, the fine rule of each line bunch is carried out the end rounding handle, and, in the head of these lines bunch embedding handle.

In a preferred embodiment of the present invention, this method also comprises operation: after the end rounding was handled, making between the end of these lines bunch had an additional height poor.

In addition, the invention provides a kind of method of making toothbrush, this method comprises operation: many bunches of fine rules are introduced shaping mould, make between the end of each bunch fine rule of these lines bunch and the end of these lines bunch between a difference in height is arranged, the fine rule of each bunch of these lines bunch is carried out the end rounding to be handled, and, in the head of these lines bunch embedding handle.

In a preferred embodiment of the present invention, this method also comprises operation: after the end rounding is handled, there is being an additional height poor between the end of these lines bunch and/or between the end at the fine rule of each bunch of these lines bunch, wherein, above-mentioned additional height difference is different from or greater than above-mentioned difference in height.

Thus, constitute method of the present invention and can be applied to making various brushes.Be particularly suitable for making toothbrush.As everyone knows, brush, toothbrush for example comprises: have the handle of a head and be embedded in the head multiwire line bunch.Usually, handle and head are integrally made with resin, and above-mentioned resin comprises: polypropylene, polyester, ABS (the fine butylbenzene of propylene), PMMA (polymethyl methacrylate), Merlon, cellulose propionate, polyacetals or analog.Consider manufacturing cost and formability, polypropylene is a preferable material.And handle portion ground has the thermoplastic elastomer (s) of two kinds of colors to make with mouldable, therefore, has increased elasticity, makes that toothbrush provides comfort to gum when brushing teeth.Fine rule can be made with nylon, polyester or analog.In addition, it can be made by the combination of these materials.Replace, it also can be made by other suitable resin material.

Line bunch can be cut into predetermined length or on spool.Every bunch bunch comprises many fine rules above-mentioned, and fine rule can for example nylon or analog be made with the thermoplastic polyester.Line on the spool bunch will be with the method explanation of embodiment.The line consistent bunch with the quantity that will be embedded in the line bunch in the head, perhaps, with will be embedded in line in the head bunch quantitatively become n doubly the line bunch of (n: be an integer) (perhaps the line of predetermined quantity bunch) twisted on the spool, and, take off by line bunch infeed mean or similar device.Usually, a line bunch infeed mean comprises a pair of anchor clamps, and anchor clamps allow the line of predetermined quantity bunch to pass through, when needs clamp clamps they.Especially, anchor clamps are to arrange like this: in the anchor clamps one clamps line bunch, and another anchor clamps allow the line that is fed bunch to pass through.Anchor clamps can move on a certain direction relative to the anchor clamps of another feed line bunch.

In end rounding operation or before handling or after, use have the finishing die of the installing hole of predetermined quantity can online bunch between and/or between fine rule, form difference in height.If form difference in height between online bunch, can make the degree of depth difference of each installing hole of finishing die.And, each installing hole lower surface can be processed into curve form if between the fine rule of each line bunch, form difference in height.Forming difference in height with such finishing die device is achieved in that the end of each line bunch is inserted in each installing hole of finishing die, so that be close to the end abutment of installing hole basal surface.

Before the rounding operation of end, the difference in height between the end of line bunch can be 0.3mm or bigger, and preferably approximately 0.5mm or bigger makes the profile of line bunch end to change when rounding is handled.

Use lapping device for example grinder or similar mechanical actuation end rounding operation, lapping device comprises grinding flat plate, usually, the structure of lapping device should make: grinding flat plate rotates in perpendicular to the plane of line bunch and moves, and reaches the end rounding that has one group of line bunch at least.The end rounding is handled fine rule end portion treatment one-tenth and length and highly relevant circle.For example, make the fine rule that highly increases more precipitous, highly the fine rule of Jiang Diing is milder.

And the end rounding is handled and can be carried out with independent grinding flat plate.In addition, it also can use the combination of roughing grinding flat plate and fine finishining grinding flat plate, carries out in the mode of multiple working procedure.And after grinding, the end of line bunch or fine rule can use polishing wheel or polisher to polish.

Use any suitable cutter sweep well known in the prior art,, can carry out the cutting of line bunch by integrally or side by side cutting multiwire line bunch.Use any suitable operation of using in the above-described prior art, can be with in the line bunch embedding head that has cut.For example, the line that uses heated plate, hot-air, infrared ray or similar device heat to melt to be cut in conjunction with each bunch bunch then, by above-mentioned inner mould technology or similar techniques, bunch embeds line in the head.

As mentioned above, in the method for the invention, form difference in height between online bunch and/or between the fine rule of each line bunch, then, will be embedded into institute in the head and carry out the end rounding for wired bunch and handle.The rounding of line bunch or fine rule changes with height, and therefore produced brush can improve and scrubs function.

Especially, that the end is taper shape and taper or be processed to that half fusiform fine rule can remove effectively that slit (gums slit) between tooth and gum the locates dental plaque of locating with tooth and interdental slit, and, provide comfort to gum, and, the end grinds to form hemispheric fine rule can remove spot on the dental surface satisfactorily, can not destroy gum.Therefore, the fine rule and coexistence that have conical and tapered end at the head of toothbrush with the fine rule that forms hemispheric rounded ends, thereby, this toothbrush not only can be removed the spot of the tooth of the dental plaque at the slit place between tooth and the gum and tooth and interdental slit locating effectively, and, can get rid of the spot on the dental surface effectively.

In addition, when making brush, use continuous lines on each spool bunch can prevent that principal vertical line bunch unclamps.

In addition, the present invention can make by following mode: after the end rounding is handled, between online bunch and/or to form additional height between the fine rule of each line bunch poor.Such structure allows on demand rounding fine rule end and the height that changes fine rule independently of each other.Therefore, can when beginning, adjust the height of fine rule, thereby determine the degree of the rounding of fine rule, make the rounding of fine rule and the height of fine rule be set up independently of each other.

By with reference to detailed description below in conjunction with accompanying drawing, can profoundly understand above-mentioned purpose of the present invention and other purposes, can further understand the present invention simultaneously, in the accompanying drawing, identical label is represented each identical or corresponding component, wherein:

Accompanying drawing 1A is the sectional view of each procedure among the embodiment of method of explanation manufacturing brush of the present invention to each width of cloth accompanying drawing of 1E;

Accompanying drawing 2A is that the head segment vertical cross-section diagram of accompanying drawing 1A to the toothbrush of the manufacturing of the method shown in the 1E used in explanation;

Accompanying drawing 2B is the enlarged drawing that the segment of the end that embeds the fine rule in the head shown in the accompanying drawing 2A is described;

Accompanying drawing 2C is the enlarged drawing that the segment of the end that embeds another root fine rule in the head shown in the accompanying drawing 2A is described;

Accompanying drawing 3A is the sectional view of each procedure among another embodiment of explanation the present invention method of making brush to each width of cloth accompanying drawing of 3E;

Accompanying drawing 4A is that the head segment vertical cross-section diagram of accompanying drawing 3A to the toothbrush of the manufacturing of the method shown in the 3E used in explanation;

Accompanying drawing 4B is the enlarged drawing that the segment of the end that embeds the fine rule in the head shown in the accompanying drawing 4A is described;

Accompanying drawing 4C is the enlarged drawing that the segment of the end that embeds another root fine rule in the head shown in the accompanying drawing 4A is described;

Accompanying drawing 4D is the enlarged drawing that the segment of the end that embeds another fine rule in the head shown in the accompanying drawing 4A is described;

Accompanying drawing 5A is the sectional view of each procedure among the embodiment again of explanation the present invention method of making brush to each width of cloth accompanying drawing of 5G;

Accompanying drawing 6A is that the head segment vertical cross-section diagram of accompanying drawing 5A to the toothbrush of the manufacturing of the method shown in the 5G used in explanation;

Accompanying drawing 6B is the segment enlarged drawing that explanation embeds the end of the fine rule in the head shown in the accompanying drawing 6A;

Accompanying drawing 6C is the segment enlarged drawing that explanation embeds the end of another root fine rule in the head shown in the accompanying drawing 6A;

Accompanying drawing 7A is the sectional view of each procedure among another embodiment of method of the brush made of explanation the present invention to each width of cloth accompanying drawing of 7G;

Accompanying drawing 8A is that the segment vertical cross-section diagram of accompanying drawing 7A to the example of the head of the toothbrush of the manufacturing of the method shown in the 7G used in explanation;

Accompanying drawing 8B is that the segment vertical cross-section of accompanying drawing 7A to another example of the head of the toothbrush of the manufacturing of the method shown in the 7G used in explanation; With:

Accompanying drawing 8C is that the segment vertical cross-section of accompanying drawing 7A to another example of the head of the toothbrush of the manufacturing of the method shown in the 7G used in explanation.

The method of manufacturing brush of the present invention is described with reference to the drawings now.

1A describes an embodiment of the method for manufacturing brush of the present invention to 2C with reference to the accompanying drawings.Be used to make toothbrush as this method of example.

In the embodiment that is illustrated, as shown in accompanying drawing 1A, at first, draw multiwire line bunch 1 from the spool (not expression) of line bunch, its end is incorporated in the finishing die 30 by two line bunch infeed means 10 and a line bunch clamping part 20.In finishing die 30, every bunch bunch 1 is configured to have predetermined length, simultaneously between online bunch or between two lines of every adjacency of line bunch 1 bunch, limits predetermined length or difference in height δ (preferably with reference to the accompanying drawings 2) by mode injustice or waveform.Above-mentioned difference in height δ is general about to be 1mm.

Each line bunch 1 comprises many fine rules, and fine rule is made with thermoplastic resin or analog, and from twisting on the spool or analog is drawn.

Line bunch infeed mean 10 and line bunch clamping part 20 all comprise the feeding passage, and passage is quantitatively corresponding with the quantity of line bunch in the head H that will be embedded at least one toothbrush T.A line bunch clamping part or similar device are installed in each feeding passage, so that fixing therein or clamp line bunch 1, in the embodiment of this explanation, four such feeding passages are configured in each group parts 10 and the parts 20.The structure of a line bunch infeed mean 10 and a line bunch clamping part 20 causes movably extension line bunch 1 by the feeding passage, and clamps line bunch with the clamping part in the passage.And the structure of parts 10 and parts 20 can make at least one parts in these two parts can online bunch feed on the direction reciprocatingly by actuating device (here not expression), and line bunch is delivered in the finishing die 30.

The quantity (4) of the line of mentioning in the present embodiment bunch only is that therefore, this quantity can depend on the needs for for the purpose of illustrating.

Be processed with installing hole on the finishing die 30, the quantity of installing hole is corresponding with line number of clusters in the head H that is embedded in toothbrush T.The degree of depth difference of each installing hole, line bunch are inserted into wherein, and be adjacent near the line bunch end of the bottom of installing hole.In the embodiment of this explanation, the lower surface of each installing hole is flat.In addition, as previously described, it also can be a curved surface.

Difference in height δ between four bunch bunch 1 forms like this: with line bunch infeed mean 10 and line bunch clamping part 20 line bunch 1 is integrally delivered to finishing die 30, so that the basal surface adjacency of each installing hole is close in the end of each line bunch, shown in accompanying drawing 1A.Then, shown in accompanying drawing 1B, keep difference in height δ between four bunch bunch, simultaneously line bunch end is shifted out from finishing die 30 by parts 10 and parts 20.

After this, shown in accompanying drawing 1C, use 50 pairs four bunch of grinder bunch 1 to carry out the end rounding and handle,, keep the difference in height δ between four bunch bunch 1 simultaneously by the clamping of parts 10 and parts 20.Grinder 50 comprises lapping apparatus or grinding flat plate or analog, and they can rotate and move in the plane vertical with line bunch 1, thereby with the end rounding of each line bunch.Each line that in height increases bunch 1A in the line bunch 1 includes the end and is worn into the fine rule that is half spindle or half aciculiform shape basically, as shown in the accompanying drawing 2B.Each line that in height reduces bunch 1B includes the end and is worn into and be hemispheric fine rule, as shown in the accompanying drawing 2C.

The structure that is used for the grinder 50 of end rounding processing can be as No. 111305/1990 document of Japanese Patent Application Publication publication discloses.

Secondly, as as shown in the accompanying drawing 1D, cutter sweep 60 moves or carry along being positioned at line bunch clamping part 20 line bunch infeed mean 10 on one side, to cut off line bunch 1, then, by the fine rule heat of each line of line bunch 1 bunch being melted the heated plate 70 that combines line bunch 1 is heated at cutting tip.In the head H with four bunch bunch 1 embedding toothbrush T, make toothbrush T at last again.

As shown in the accompanying drawing 2A, the toothbrush T that makes therefrom includes the line bunch 1 that four bundles have definite difference in height δ therebetween, and these lines bunch 1 are embedded in the head H.The such line of four bundles bunch 1 comprises: two bundles in height increase, and including the line bunch 1A that forms the fine rule F be half spindle (accompanying drawing 2B) in the end and two bundles in height reduces and includes the line bunch 1B that forms the fine rule F that is hemispherical (accompanying drawing 2C) in the end.Such structure makes toothbrush T not only can effectively remove spot on the dental surface, and, the slit between cleaning teeth and the gum effectively.And, when brushing teeth, can make gum that comfort is arranged.

Now, 3A is to 4D with reference to the accompanying drawings, and another embodiment of the method for making brush according to the present invention is described, and is same, as an embodiment, this method is used to make toothbrush.

In the illustrated embodiment, finishing die 30 has two deep holes and two shallow bore holes, and each hole has semicircular lower surface.As shown in the accompanying drawing 3A, the line of drawing from spool or similar device bunch 1 is inserted into the above-mentioned hole of finishing die 30 by line bunch infeed mean 10 and line bunch clamping part 20 its ends.Owing to depth difference is arranged between the hole, have the height or the length difference of qualification between the line bunch 1 by mode injustice or waveform.And, because each hole semicircular in shape of finishing die 30, make between each bunch fine rule of line bunch 1 to have height or length difference.Especially, because the hole semicircular in shape, form difference in height δ between the end of per two bundle adjacent lines of online bunch 1 bunch, and limit difference in height s in the end of each line bunch, as depicted in the figures.In the present embodiment, differing from δ and s approximately all is 0.5mm.

After this, as shown in accompanying drawing 3B and the 3C, when the clamping by parts 10 and parts 20 keeps between four bunch bunch 1 difference in height δ and each line bunch the difference in height s at place, end, use 50 pairs four bunch of grinder bunch to carry out the end rounding and handle.This just causes the end of long fine rule F of each line bunch of the line that in height increases bunch 1 to be become to be half spindle basically by rounding, and the end of the fine rule F of the weak point of each line bunch is worn into and is hemispherical basically, as shown in accompanying drawing 4B and the 4C.Also the end of the long fine rule F of each line of the line that each in height can be reduced bunch 1 bunch is worn into and is hemispherical basically, and the end of the fine rule F of the weak point of each line bunch scabbles and become to be essentially flat shape, as shown in accompanying drawing 4C and the 4D.Then, each line of line bunch 1 bunch is cut into as shown in the accompanying drawing 3D, makes cutting tip place heat melt combination by heated plate 70 again, as shown in the accompanying drawing 3E.After this, in the line bunch 1 embedding head H that is cut, make toothbrush T at last.

As shown in the accompanying drawing 4A, the toothbrush T that makes therefrom includes bunch of 1 and two line that in height reduces of two lines that increase bunch 1 on height or length.In height the end of the central authorities head's of each line of the line of Zeng Jiaing bunch 1 bunch fine rule F forms half spindle basically, as shown in the accompanying drawing 4B; All around Duan fine rule F is essentially hemispherical, as shown in the accompanying drawing 4C.And in height the end of the central authorities head's of each line of the line of Jian Shaoing bunch 1 bunch fine rule F is essentially hemispherical, as shown in the accompanying drawing 4D; And short all around fine rule F is scabbled into flat shape.As shown in the accompanying drawing 4D.Such structure makes toothbrush have the satisfied function of scrubbing, and, when brushing teeth, can provide comfortable impression to gum.

Therefore in the present embodiment, the hole of finishing die has the different degree of depth, and highly different line bunch can be provided.In addition, the hole also can be processed into has the identical degree of depth, so that the high unity of line bunch.Moreover in the illustrated embodiment, the lower surface in each hole of finishing die all can be processed to semicircular recessed or concave shape.Certainly the lower surface in hole also can be made into other suitable shape, for example, and the boss of semicircular boss or square column or similar shape.Therefore, can select the shape of lower surface suitably according to the purposes of brush.

Accompanying drawing 5A is illustrated another embodiment according to the method for manufacturing brush of the present invention to 6C.Equally, as an example, this method is used to make toothbrush.In the illustrated embodiment, accompanying drawing 5A represents the operation that end rounding operation was carried out in the past to 5C, in fact can carry out according to the identical mode of the operation of describing to 1C with above-mentioned accompanying drawing 1A.Therefore, after four bunch bunch 1 bear the end rounding and handle, a definite poor δ is in height just arranged between them, wherein, the end of the fine rule F of each line of each line that in height increases bunch 1A bunch is made into half spindle, and the end of those fine rules F of the line that each in height reduces bunch 1B is made into hemispherical.In the present embodiment, difference in height δ can be configured to about 0.5mm.

Then, as shown in accompanying drawing 5D, use and to cut off four bunch bunch 1 near 60 online bunches of ends of cutter sweep, make their end aligned with each other.After this, as shown in the accompanying drawing 5E, the line of being clamped by line bunch infeed mean 10 and line bunch clamping part 20 bunch 1 is released, makes to have difference in height s between online bunch 1 the fine rule F of each line bunch and have difference in height δ between online bunch 1 by second finishing die 90 ₀, second finishing die 90 is formed with four holes that the degree of depth is different.Difference on the degree of depth in the hole of second finishing die is different from the poor δ on the degree of depth in hole of finishing die 30.Each hole of finishing die 90 has the lower surface of semi-circular indentation shape.Line bunch 1 is inserted in the hole of finishing die, make the end of each line bunch of line bunch be close on the lower surface in each hole, form difference δ 0 and s on the height, therefore, form difference in height δ between online bunch 1, form difference in height s between the fine rule F of each line of online bunch 1 bunch, make the end of each line bunch make hemispherical.In the present embodiment, difference in height δ 0 and s can be set as respectively about 2mm and 0.3mm.

Then, use cutter sweep 60 lines of cut bunch 1, elimination closes on the coarse injustice of the line bunch on one side of end, as as shown in the accompanying drawing 5F,, the cutting tip of each line bunch is melted knot together again by the such device of heated plate 50, as as shown in the accompanying drawing 5G, subsequently, the line that melts knot bunch is embedded in the head H, therefore makes toothbrush T.

As at accompanying drawing 6A to shown in the 6C, the toothbrush T that makes like this comprises and is arranged in the line bunch 1B that line bunch 1A that two in head H bundle in height increases and two bundles in height reduce that the difference in height between them is δ 0.When the difference in height of the end between online bunch the fine rule F remained s, the end of every bunch bunch 1A and 1B was made into pediment shape or hemispheric boss.And the end of the fine rule F of each line of the line bunch 1A that in height increases bunch is made into to be basically half spindle, as as shown in the accompanying drawing 6B, and the end of the fine rule F of each line of the line bunch 1B that in height reduces bunch is made into to be hemispherical basically, as shown in the accompanying drawing 6C.Such Tooth-brush structure makes toothbrush have the more satisfied function of scrubbing, and, when brushing teeth, can make gum that comfort is arranged.

Accompanying drawing 7A is illustrated according to the embodiment of the method for manufacturing brush of the present invention another to 7G.Equally, this example is used to make toothbrush.In the present embodiment, make between the line bunch 1 with the finishing die 30 that comprises a former 30a and a formpiston 30b to have difference in height, as shown in the accompanying drawing 7A.Have on the former 30a be embedded in head H in the corresponding through hole of quantity of line bunch, and formpiston 30b is included in differentiated adjusting lever on the length, and quantity is corresponding with the number of openings of former 30a, and is connected with a cylinder (not expression).

As shown in the accompanying drawing 7A, difference in height δ forms like this: is inserted into the through hole of former 30a from one side of former 30a with line bunch 1, then, from the another side of former 30a, the adjusting lever that inserts formpiston 30b is in the through hole of former 30a, by means of adjusting lever pusher line bunch 1.This just makes between the end of line bunch 1 and forms difference in height δ.In the present embodiment, can be set as approximately be 0.7mm to difference in height δ.

In the present embodiment, the end of adjusting lever is made into flat shape.In addition, adjusting lever can be made into similar semicircle boss shape, semi-cylindrical canyon shape or analogous shape, so that have height or length difference between the fine rule F of each line bunch 1.

Then, as described in the above embodiments, when line bunch 1 is fed parts 10 and line bunch clamping part 20 and clamps, remove former 30a, as shown in the accompanying drawing 7B, and, the grinding that makes the end of line bunch 1 bear grinder 50 is as shown in the accompanying drawing 7C.Therefore, as described in embodiment in the above, line bunch 1 is worn into: the end of 1 the fine rule F of each line that in height increases bunch is half spindle substantially, and the basic semicircular in shape in end of those fine rules F that each in height reduces.Then,, that part between the online bunch of infeed mean 10 of line bunch 1 is cut down, as shown in the accompanying drawing 7D by cutter sweep 60.

After this, as shown in the accompanying drawing 7E, use second finishing die 90 that constitutes by former 90a and formpiston 90b to make between the line bunch 1 or between the fine rule F of each line bunch, have an additional height poor.Specifically, former 90a comprises a plurality of through holes, the quantity of the line in the quantity of through hole and the head that will be embedded into toothbrush bunch is corresponding, and formpiston 90b comprises the corresponding adjusting lever of number of openings of quantity and former 90a, and the end of each adjusting lever is made into semicircular concave shape.Then, insert the above-mentioned through hole from one side of former 90a with line bunch 1, again from the another side of former 90a, the adjusting lever of formpiston 90b is inserted in the through hole, pusher line bunch 1 produces additional height difference δ between online bunch 1 ₀, as the above-described poor δ that forms by finishing die 30.In the present embodiment, differ from δ 0 and be approximately 1.5mm.

Certainly, the adjusting lever of formpiston 90b can be made into the shape beyond the semicircular concave shape, for example, and semicircular boss shape or similar shape.According to the purposes of the brush shape of selector suitably.

Secondly, as at 5A with reference to the accompanying drawings to the illustrated embodiment of 5G, use cutter sweep 60, cut off line bunch 1, make online bunch 1 near the alignment mutually of place, end, as shown in the accompanying drawing 7F, after this, use heated plate 50 heater wires bunch 1 near the place, end, make whole combination in each end near the place, end of online bunch 1, as shown in the accompanying drawing 7G.Then, line bunch 1 is embedded in the head and make toothbrush.

According to being not limited to accompanying drawing 6A to the structure shown in the 6C to 5G with at accompanying drawing 7A to the toothbrush of each the embodiment manufacturing shown in the 7G at accompanying drawing 5A.For example, the toothbrush T of above-mentioned each embodiment can be manufactured as at accompanying drawing 8A to as shown in the 8C.Specifically, at the toothbrush T shown in the accompanying drawing 8A by like this structure: increase on height and the end make and be essentially the position, front and back that hemispheric line bunch 1A longitudinally is placed in head H, and with reduce on the height and make half fusiform line bunch 1B substantially in the end and settle between the online bunch of 1A.In the toothbrush T shown in the accompanying drawing 8B, with increase on the height and make substantially for hemispheric line bunch 1A longitudinally is placed in the position, front and back of head H in the end, and the line bunch 1B of the concave shape that reduces on the height and make semicircle in the end is settled between the online bunch of 1A.In the toothbrush T shown in the accompanying drawing 8C, with increasing on the height and being made in the end is the position, front and back that half fusiform line bunch 1A edge laterally is placed in head H substantially, is that half fusiform line bunch 1B settles between the online bunch of 1A substantially and make with minimizing on the height and in the end.

Form as previously described according to being provided with difference in height between online bunch of the method for the present invention and/or between the fine rule of each line bunch, bunch is carried out the end milled processed to line then, and line that and then will be in groups bunch is fixed in the head.Such structure can make the shape of the end of fine rule and/or line bunch change on demand, and therefore the toothbrush of making can improve and scrubs function, and, when brushing teeth, can provide comfortable impression to gum.

And the present invention can so constitute: make between the line bunch and/or between the fine rule of each line bunch, have difference in height, line bunch is carried out the end milled processed, then, make between the line bunch and/or the fine rule of each line bunch between further have difference in height.Such structure can make: between the end shape of fine rule and the line bunch or the difference in height that has between the fine rule of each line bunch be provided with independently of each other, can further increase the function of scrubbing of toothbrush, and comfortable impression is provided in use.

Though the preferred embodiments of the present invention have been done certain explanation with reference to the accompanying drawings, can also make tangible modifications and variations to above-mentioned technology.Obviously, in the scope of protection, the present invention can also have the way except that top specific description.

Claims (9)

1, a kind of method of making brush comprises operation:

Multiwire line bunch (1) is incorporated into finishing die (30), difference in height (δ) is set between the end of online bunch (1);

The fine rule (F) of each line of line bunch (1) bunch is carried out the end rounding to be handled; With:

In the head of above-mentioned line bunch embedding handle.

2, the method for claim 1 also comprises: after the end rounding is handled, the operation of additional difference in height (δ 0) is set between the end of online bunch (1);

Above-mentioned additional height poor (δ 0) is different from or greater than above-mentioned difference in height (δ).

3, method as claimed in claim 1 or 2 also comprises: after the end rounding is handled, the operation of additional height difference is set between the end of the fine rule (F) of each line of online bunch (1) bunch;

4, a kind of method of making brush comprises operation:

Multiwire line bunch (1) is incorporated into finishing die (30), between the end of the fine rule (F) of each line bunch (1), difference in height (s) is set;

Fine rule (F) to each line bunch (1) carries out end rounding processing; With:

Above-mentioned line bunch (1) is embedded in the head (H) of handle.

5, method as claimed in claim 4 also comprises: after the end rounding is handled, the operation of additional height difference is set between the end of the fine rule (F) of online bunch of (1) each line bunch;

Above-mentioned additional height difference is different from or greater than above-mentioned difference in height (s).

6, as the method for claim 4 definition, also comprise: after the end rounding is handled, the operation of additional height difference is set between the end of online bunch (1).

7, as claim 4 or 5 described methods, also comprise; After the end rounding is handled, the operation of additional height difference is set between the end of online bunch (1).

8, a kind of method of making brush comprises operation:

Multiwire line bunch (1) is incorporated into finishing die (30), be provided with between the end of the fine rule (F) of each line bunch (1) and between the end of online bunch (1) difference in height (δ, s);

Fine rule (F) to each line bunch (1) carries out end rounding processing; With:

Above-mentioned line bunch (1) is embedded in the head (H) of handle.

9, method as claimed in claim 8 also comprises: the end is carried out after rounding handles, between the end of online bunch (1) and/or the operation of additional difference in height is set between the end of the fine rule (F) of each line bunch (1); Above-mentioned additional height difference be different from or greater than above-mentioned difference in height (δ, s).

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